It happened in the chapter where you need to find the power cell to fire up the heat generators on Tau Volanits. 2 Leapers where coming at me, so I dismembered 1 and hit the other with stasis. The 2nd Leaper literally flew over the side of the barricade after caneering into the other dead one. The sheer slowness of its descent (as it was in stasis for a while) was so hillarious! If you've had a funny experience, please post a reply!